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Demopolis, AL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Demopolis, a city in Marengo County, Alabama.

Overnight
72°F
Mostly Clear
Mostly clear, with a low around 72. Wind around 0 mph.

7-day forecast for Demopolis

WhenTempForecastWindPrecip
Overnight 72°F Mostly Clear 0 mph 1%
Saturday 99°F Sunny then Chance Showers And Thunderstorms 0 mph 29%
Saturday Night 71°F Chance Showers And Thunderstorms then Partly Cloudy 0 mph 29%
Sunday 96°F Sunny 0 mph 10%
Sunday Night 71°F Mostly Clear 0 mph 10%
Monday 96°F Sunny then Slight Chance Showers And Thunderstorms 0 mph 15%
Monday Night 70°F Chance Showers And Thunderstorms 0 mph 32%
Tuesday 93°F Slight Chance Showers And Thunderstorms 0 to 5 mph NE 22%
Tuesday Night 70°F Slight Chance Showers And Thunderstorms 0 mph 22%
Wednesday 92°F Sunny 5 to 10 mph N 10%
Wednesday Night 68°F Mostly Clear 5 to 10 mph N 10%
Thursday 88°F Sunny 5 to 10 mph N 4%
Thursday Night 65°F Mostly Clear 0 to 10 mph N 4%
Friday 87°F Sunny 5 to 10 mph N 0%

Forecast source: National Weather Service (api.weather.gov) for Demopolis (32.500, -87.827). Updated through the day.

Growing snapshot for Demopolis

Last spring frost
Mar 16
First fall frost
Nov 14
Growing season
241 days
Hardiness zone
8b

More local growing data for Demopolis: nearby ZIP 36742 weather · frost dates · planting calendar · Alabama frost dates

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Climate data from the nearest NOAA station, Demopolis L&D, Al (8.6 mi from Demopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.